70749943 has 8 divisors (see below), whose sum is σ = 77366016. Its totient is φ = 64164600.

The previous prime is 70749941. The next prime is 70749953. The reversal of 70749943 is 34994707.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70749943 - 2¹ = 70749941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70749943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70749941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2721 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (9670752).

Almost surely, 2^70749943 is an apocalyptic number.

70749943 is a deficient number, since it is larger than the sum of its proper divisors (6616073).

70749943 is a wasteful number, since it uses less digits than its factorization.

70749943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15365.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 70749943 is about 8411.2985323314. The cubic root of 70749943 is about 413.5950808433.

The spelling of 70749943 in words is "seventy million, seven hundred forty-nine thousand, nine hundred forty-three".